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Transcriptomic profiling of the myeloma bone-lining niche identifies BMP signalling as a target for bone disease

ABSTRACT: Transcriptomic profiling of the myeloma bone-lining niche identifies BMP signalling as a target for bone disease

PROVIDER: PRJNA560055 | ENA |

REPOSITORIES: ENA

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RNASeq of bone lining niche cell components from myeloma-bearing mice treated daily with small molecule LDN193189 (LDN) or vehicle control

Project description:We compare gene expression in FACS-sorted bone lining cell components (stromal progenitors, osteoprogenitors, endothelial cells) from LDN193189 vs. vehicle-treated myeloma-bearing mice, and in myeloma cells flushed from the central marrow vs. myeloma cells digested from the bone-lining niche. The myeloma model used is the murine 5TGM1 cell line injected into immunocompetent KaLwRij mice. LDN193189 is a type 1 BMP receptor inhibitor.

2019-08-14 | GSE135785 | GEO

Transcriptomic profiling of the myeloma bone-lining niche reveals BMP signalling inhibition to improve bone disease.

Project description: Not available

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RNASeq of bone lining niche cell components from healthy vs. myeloma-bearing mice

Project description:We compare gene expression in FACS-sorted bone-lining cell components: stromal progenitors, osteoprogenitors and endothelial cells, from myeloma-bearing vs. from healthy mice, and also between myeloma cells flushed from the central bone marrow vs. myeloma cells digested from the bone surface (myeloma-bearing mice only). The myeloma model used is the 5TGM1 murine myeloma cell line, injected into immunocompetent KaLwRij mice.

2019-08-14 | GSE135691 | GEO

Transcriptomic profiling of the myeloma bone-lining niche identifies BMP signalling as a target for bone disease

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-08-14 | GSE135786 | GEO

RNASeq of bone lining niche cell components from healthy vs. myeloma-bearing mice

Project description:RNASeq of bone lining niche cell components from healthy vs. myeloma-bearing mice

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Optogenetic manipulation of BMP signalling to drive chondrogenic differentiation of hPSCs

Project description:Optogenetics is a rapidly advancing technology that combines photochemical, optical and synthetic biology techniques to control cellular behaviour and physiology. Combining sensitive light responsive optogenetic intervention tools with human pluripotent stem cell differentiation models has the potential to refine differentiation and unpick the processes by which morphogenetic signals direct tissue patterning, organisation and cell specification. Here, we utilised an optogenetic bone morphogenetic protein (BMP) signalling system (optoBMP) to drive chondrogenic differentiation of human embryonic stem cells (hESCs). We initially engineered light-sensitive hESCs through CRISPR/Cas9-mediated integration of the optoBMP system into the AAVS1 locus. Activation of optoBMP with blue light in lieu of BMP family growth factors during differentiation resulted in activation of BMP signalling pathway mechanisms and upregulation of a chondrogenic phenotype, with significant transcriptional differences compared to cells left in the dark. Furthermore, cells differentiated with light were capable of forming chondrogenic pellets consisting of a hyaline-like cartilaginous matrix.

2023-11-09 | E-MTAB-13377 | biostudies-arrayexpress

Endocardial identity is established during early somitogenesis by Bmp signalling acting upstream of npas4l and etv2

Project description:The endocardium plays important roles in the development and function of the vertebrate heart; however, few molecular markers of this tissue have been identified and little is known about what regulates its differentiation. Here, we describe the Gt(SAGFF27C); Tg(4xUAS:egfp) line as a marker of endocardial development in zebrafish. Transcriptomic comparison between endocardium and pan-endothelium confirms molecular distinction between these populations and time-course analysis suggests differentiation as early as eight somites. To investigate what regulates endocardial identity, we employed npas4l, etv2 and scl loss-of-function models. Endocardial expression is lost in npas4l mutants, significantly reduced in etv2 mutants and only modestly affected upon scl loss-of-function. Bmp signalling was also examined: overactivation of Bmp signalling increased endocardial expression, whereas Bmp inhibition decreased expression. Finally, epistasis experiments showed that overactivation of Bmp signalling was incapable of restoring endocardial expression in etv2 mutants. By contrast, overexpression of either npas4l or etv2 was sufficient to rescue endocardial expression upon Bmp inhibition. Together, these results describe the differentiation of the endocardium, distinct from vasculature, and place npas4l and etv2 downstream of Bmp signalling in regulating its differentiation.

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Ectopic Hedgehog signalling causes cleft palate and defective osteogenesis

Project description:In this study, we have investigated the molecular basis of Shh signalling during development of the secondary palate and how CNCC patterning and fate is influenced by the Shh signalling network. Using a gain-of-function mouse model to activate Smoothened (R26SmoM2) signalling in the palatal mesenchyme (Osr2-IresCre), we demonstrate ectopic Hh-Smo signalling results in fully penetrant cleft palate, disrupted oral-nasal patterning and defective palatine bone formation. We show that a series of Fox transcription factors, including the novel direct target Foxl1, function downstream of Hh signalling in the secondary palate. Furthermore, we demonstrate that Wnt/BMP antagonists, in particular Sostdc1, are positively regulated by Hh signalling, concomitant with down-regulation of key regulators of osteogenesis and BMP signalling effectors. Microarray analysis was performed on excised palatal shelves from Osr2-IresCre+/- (wild-type) and Osr2-IresCre;Smo+/M2 (mutant) embryos at embryonic day (E)13.5. Osr2-IresCre (PMID:17941042) and R26SmoM2 (PMID:15107405) mice have been described previously.

2018-10-02 | E-MTAB-5518 | biostudies-arrayexpress

Proteomic profiling of murine melanoma treated with bone morphogenetic protein (BMP) signaling inhibitor

Project description:Melanoma is a highly aggressive skin cancer, which has the fastest and second fastest growing incidence of any cancer in men and women, respectively. Although melanoma accounts for 5% of skin cancers, it is responsible for 80% of deaths related to skin cancers. The lifetime risk of melanoma is currently estimated to be 1 in 75 and is rising every year. The present study shows that inhibition of bone morphogenetic protein (BMP) signaling pathway is a potential target for treating metastatic melanoma. To characterize the underlying signaling mechanism, comparative proteomic profile of the mouse melanoma tissue treated with and BMP inhibitor (LDN193189) with untreated controls was performed using liquid chromatography-tandem mass spectrometry. Our mass spectrometry data analysis leads to identification of a total of 3231 nonredundant proteins. Of the 3231 proteins, 117 were up-regulated (fold change≥ 1.5) while 14 were down-regulated (fold change ≤ 0.66). Pathway enrichment analysis showed that altered proteins were primarily grouped into: regulation of actin cytoskeleton, phagosomes, proteoglycans in cancer, Focal adhesion, ECM receptor interaction and fatty acid metabolism pathway. Our studies suggest that inhibition of the BMP signaling cascade with small molecule inhibitors decreased the expression of the MT1 and MT2 (metallothionine 1 and 2) which are well known for the antiapoptotic, antioxidant, proliferative, and angiogenic effects in cancer.

2022-02-15 | PXD016088 | Pride

Transcription profiling of human embryonic stem cells treated with BMP4 in chemically-defined medium, with and without inhibitors of Activin and FGF signalling to investigate the induction of extra-embryonic tissue differentiation by BMP signalling

Project description:Gene expression microarray analysis of hESCs treated with BMP4 in chemically-defined medium, with and without inhibitors of Activin and FGF signalling (which maintain pluripotency), to investigate the induction of extra-embryonic tissue (trophectoderm) differentiation by BMP signalling.

2009-07-31 | E-MEXP-1192 | biostudies-arrayexpress

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